/**
* Break on commas, except those inside quotes, e.g.: size(300, 200, PDF, "output,weirdname.pdf");
* No special handling implemented for escaped (\") quotes.
*/
private static StringList breakCommas(String contents) {
StringList outgoing = new StringList();
boolean insideQuote = false;
// The current word being read
StringBuilder current = new StringBuilder();
char[] chars = contents.toCharArray();
for (int i = 0; i < chars.length; i++) {
char c = chars[i];
if (insideQuote) {
current.append(c);
if (c == '\"') {
insideQuote = false;
}
} else {
if (c == ',') {
if (current.length() != 0) {
outgoing.append(current.toString());
current.setLength(0);
}
} else {
current.append(c);
if (c == '\"') {
insideQuote = true;
}
}
}
}
if (current.length() != 0) {
outgoing.append(current.toString());
}
return outgoing;
}
private String debugHiddenTokens(antlr.CommonHiddenStreamToken t) {
final StringBuilder sb = new StringBuilder();
for (; t != null; t = filter.getHiddenAfter(t)) {
if (sb.length() == 0) {
sb.append("[");
}
sb.append(t.getText().replace("\n", "\\n"));
}
if (sb.length() > 0) {
sb.append("]");
}
return sb.toString();
}
/**
* Parse a chunk of code and extract the size() command and its contents. Also goes after
* fullScreen(), smooth(), and noSmooth().
*
* @param code The code from the main tab in the sketch
* @param fussy true if it should show an error message if bad size()
* @return null if there was an error, otherwise an array (might contain some/all nulls)
*/
public static SurfaceInfo parseSketchSize(String code, boolean fussy) throws SketchException {
// This matches against any uses of the size() function, whether numbers
// or variables or whatever. This way, no warning is shown if size() isn't
// actually used in the applet, which is the case especially for anyone
// who is cutting/pasting from the reference.
// String scrubbed = scrubComments(sketch.getCode(0).getProgram());
// String[] matches = PApplet.match(scrubbed, SIZE_REGEX);
// String[] matches = PApplet.match(scrubComments(code), SIZE_REGEX);
/*
1. no size() or fullScreen() method at all
will use the non-overridden settings() method in PApplet
2. size() or fullScreen() found inside setup() (static mode sketch or otherwise)
make sure that it uses numbers (or displayWidth/Height), copy into settings
3. size() or fullScreen() already in settings()
don't mess with the sketch, don't insert any defaults
really only need to deal with situation #2.. nothing to be done for 1 and 3
*/
// if static mode sketch, all we need is regex
// easy proxy for static in this case is whether [^\s]void\s is present
String searchArea = scrubComments(code);
String[] setupMatch = PApplet.match(searchArea, VOID_SETUP_REGEX);
if (setupMatch != null) {
String found = setupMatch[0];
int start = searchArea.indexOf(found) + found.length();
int openBrace = searchArea.indexOf("{", start);
char[] c = searchArea.toCharArray();
int depth = 0;
int closeBrace = -1;
StringBuilder sb = new StringBuilder();
for (int i = openBrace; i < c.length; i++) {
if (c[i] == '{') {
depth++;
} else if (c[i] == '}') {
depth--;
if (depth == 0) {
closeBrace = ++i;
break;
}
} else {
sb.append(c[i]);
}
}
if (closeBrace == -1) {
throw new SketchException("Found a { that's missing a matching }", false);
// return null;
}
searchArea = sb.toString();
}
StringList extraStatements = new StringList();
// First look for noSmooth() or smooth(N) so we can hoist it into settings.
String[] smoothContents = matchMethod("smooth", searchArea);
if (smoothContents != null) {
extraStatements.append(smoothContents[0]);
}
String[] noContents = matchMethod("noSmooth", searchArea);
if (noContents != null) {
if (extraStatements.size() != 0) {
throw new SketchException("smooth() and noSmooth() cannot be used in the same sketch");
} else {
extraStatements.append(noContents[0]);
}
}
String[] pixelDensityContents = matchMethod("pixelDensity", searchArea);
if (pixelDensityContents != null) {
extraStatements.append(pixelDensityContents[0]);
}
String[] sizeContents = matchMethod("size", searchArea);
String[] fullContents = matchMethod("fullScreen", searchArea);
// First check and make sure they aren't both being used, otherwise it'll
// throw a confusing state exception error that one "can't be used here".
if (sizeContents != null && fullContents != null) {
throw new SketchException("size() and fullScreen() cannot be used in the same sketch", false);
}
// Get everything inside the parens for the size() method
// String[] contents = PApplet.match(searchArea, SIZE_CONTENTS_REGEX);
if (sizeContents != null) {
StringList args = breakCommas(sizeContents[1]);
SurfaceInfo info = new SurfaceInfo();
info.statement = sizeContents[0];
info.width = args.get(0).trim();
info.height = args.get(1).trim();
info.renderer = (args.size() >= 3) ? args.get(2).trim() : null;
info.path = (args.size() >= 4) ? args.get(3).trim() : null;
// Trying to remember why we wanted to allow people to use displayWidth
// as the height or displayHeight as the width, but maybe it's for
// making a square sketch window? Not going to
if (info.hasOldSyntax()) {
// return null;
throw new SketchException("Please update your code to continue.", false);
}
if (info.hasBadSize() && fussy) {
// found a reference to size, but it didn't seem to contain numbers
final String message =
"The size of this sketch could not be determined from your code.\n"
+ "Use only numbers (not variables) for the size() command.\n"
+ "Read the size() reference for more details.";
Base.showWarning("Could not find sketch size", message, null);
// new Exception().printStackTrace(System.out);
// return null;
throw new SketchException("Please fix the size() line to continue.", false);
}
if (extraStatements.size() != 0) {
info.statement += extraStatements.join(" ");
}
info.checkEmpty();
return info;
// return new String[] { contents[0], width, height, renderer, path };
}
// if no size() found, check for fullScreen()
// contents = PApplet.match(searchArea, FULL_SCREEN_CONTENTS_REGEX);
if (fullContents != null) {
SurfaceInfo info = new SurfaceInfo();
info.statement = fullContents[0];
StringList args = breakCommas(fullContents[1]);
if (args.size() > 0) { // might have no args
String args0 = args.get(0).trim();
if (args.size() == 1) {
// could be either fullScreen(1) or fullScreen(P2D), figure out which
if (args0.equals("SPAN") || PApplet.parseInt(args0, -1) != -1) {
// it's the display parameter, not the renderer
info.display = args0;
} else {
info.renderer = args0;
}
} else if (args.size() == 2) {
info.renderer = args0;
info.display = args.get(1).trim();
} else {
throw new SketchException("That's too many parameters for fullScreen()");
}
}
info.width = "displayWidth";
info.height = "displayHeight";
if (extraStatements.size() != 0) {
info.statement += extraStatements.join(" ");
}
info.checkEmpty();
return info;
}
// Made it this far, but no size() or fullScreen(), and still
// need to pull out the noSmooth() and smooth(N) methods.
if (extraStatements.size() != 0) {
SurfaceInfo info = new SurfaceInfo();
info.statement = extraStatements.join(" ");
return info;
}
// not an error, just no size() specified
// return new String[] { null, null, null, null, null };
return new SurfaceInfo();
}